Our budget for this trip is $150 per day:
We ended up spending closer to $175 a day. Along the way we decided that we'd rather come home earlier then to not do everything we wanted to do. It was the best decision for us. We also could of saved money by not seeing as many places in one country but again we wanted it ALL.
Passports and Flights from Chicago-Iceland- London aren't reflected in the budget. We paid for these well before we left.. Flight was $2000